Teaching Bihar D.El.Ed Mock Test Series 2024-25 Quantitative Aptitude Trigonometry Heights and Distances
If the angle of elevation of the sun changes from 60° to 30°, the length of the shadow of a tree increased by 20 meters. The height of the tree is
1
\( {10 \over \sqrt3}\) meter
2
10 meter
3
10√3 meter
4
9√3 meter